Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/31999
DC Field | Value | Language |
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dc.contributor.author | ZAMPIERI, Luca | en_US |
dc.contributor.author | MEREGHETTI, Sandro | en_US |
dc.contributor.author | Turolla, Roberto | en_US |
dc.contributor.author | Naletto, Giampiero | en_US |
dc.contributor.author | OCHNER, PAOLO | en_US |
dc.contributor.author | BURTOVOI, ALEKSANDR | en_US |
dc.contributor.author | FIORI, Michele | en_US |
dc.contributor.author | GUIDORZI, CRISTIANO | en_US |
dc.contributor.author | NICASTRO, LUCIANO | en_US |
dc.contributor.author | PALAZZI, ELIANA | en_US |
dc.contributor.author | PILIA, Maura | en_US |
dc.contributor.author | POSSENTI, ANDREA | en_US |
dc.date.accessioned | 2022-03-29T09:41:44Z | - |
dc.date.available | 2022-03-29T09:41:44Z | - |
dc.date.issued | 2022 | en_US |
dc.identifier.issn | 2041-8205 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31999 | - |
dc.description.abstract | In 2021 September the magnetar SGR J1935+2154 entered a stage of burst/flaring activity in the hard X-ray band. On 2021 September 10, we observed SGR J1935+2154 with the fiber-fed fast optical photon counter IFI+Iqueye, mounted at the 1.22 m Galileo telescope in Asiago. During one of the IFI+Iqueye observing windows, a hard X-ray burst was detected with the Fermi Gamma-ray Burst Monitor. We performed a search for any significant increase in the count rate on the 1 s, 10 ms, and 1 ms binned IFI+Iqueye light curves around the time of the Fermi burst. No significant peak was detected with a significance above 3σ in an interval of 90 s around the burst. Correcting for interstellar extinction (A V ≃ 5.8 mag), the IFI+Iqueye upper limits to any possible optical burst from SGR J1935+2154 are V = 10.1 mag, V = 7.2 mag, and V = 5.8 mag for the 1 s, 10 ms, and 1 ms binned light curves, respectively. The corresponding extinction-corrected upper limits to the fluence (specific fluence) are 3.1 10-10 erg cm-2 (0.35 Jy s), 4.2 10-11 erg cm-2 (4.8 Jy •10 ms), and 1.6 10-11 erg cm-2 (17.9 Jy ms), orders of magnitude deeper than any previous simultaneous optical limit on a magnetar burst. The IFI+Iqueye measurement can also place a more stringent constraint on the spectral index of the optical to hard X-ray fluence of SGR J1935+2154, implying a spectrum steeper than ν 0.64. Fast optical timing observations of bursts associated with radio emission then have the potential to yield a detection. | en_US |
dc.language.iso | eng | en_US |
dc.title | Deep Upper Limit on the Optical Emission during a Hard X-Ray Burst from the Magnetar SGR J1935+2154 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/2041-8213/ac4b60 | en_US |
dc.identifier.scopus | 2-s2.0-85124622225 | en_US |
dc.identifier.url | https://api.elsevier.com/content/abstract/scopus_id/85124622225 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/2041-8213/ac4b60 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 925 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | L16 | en_US |
dc.type.referee | REF_1 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL LETTERS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.description.apc | sì | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 2041-8205 | - |
crisitem.journal.ance | E196528 | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | IASF Milano | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | O.A. Cagliari | - |
crisitem.author.dept | O.A. Cagliari | - |
crisitem.author.orcid | 0000-0002-6516-1329 | - |
crisitem.author.orcid | 0000-0003-3259-7801 | - |
crisitem.author.orcid | 0000-0001-5578-8614 | - |
crisitem.author.orcid | 0000-0002-8734-808X | - |
crisitem.author.orcid | 0000-0002-7352-6818 | - |
crisitem.author.orcid | 0000-0001-8534-6788 | - |
crisitem.author.orcid | 0000-0002-8691-7666 | - |
crisitem.author.orcid | 0000-0001-7397-8091 | - |
crisitem.author.orcid | 0000-0001-5902-3731 | - |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
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Zampieri_2022_ApJL_925_L16.pdf | Pdf editoriale | 878.14 kB | Adobe PDF | View/Open |
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